Since 50fb542b20. And we don't need to set an empty string.
50fb542b20
@ -413,8 +413,7 @@ fi
#######
if [ "$RUN" = 1 ]; then
export PATH="${ANDROID_SDK}/platform-tools/:$PATH"
EXTRA=""
if [ "$STUB" = 1 ]; then
EXTRA="--ez 'extra_test_stubs' true"
fi
adb wait-for-device